eure/bobo

package command

import (
    "fmt"
    "math/rand"
    "regexp"
    "time"
)

// ReactEmojiCommand is an example command.
// This command add emoji reaction 20% chance.
var ReactEmojiCommand = BasicCommandTemplate{
    Help:   "add reaction to message",
    Regexp: regexp.MustCompile("^"),
    GenerateFn: func(d CommandData) Command {
        c := Command{}
        if !isRandValid(20) {
            return c
        }

        emoji, err := d.Engine.GetEmojiByRandom()
        if err != nil {
            task := NewReplyEngineTask(d.Engine, d.Channel, fmt.Sprintf("Error on Slack!\nErr: `%s`", err.Error()))
            c.Add(task)
            return c
        }

        task := NewReactionEmojiEngineTask(d.Engine, d.Channel, emoji, d.ThreadTimestamp)
        c.Add(task)
        return c
    },
}

func isRandValid(percent int) bool {
    rand.Seed(time.Now().UTC().UnixNano())
    return percent > rand.Intn(100)
}